William Bright; editor-in-chief. (1992). International encyclopedia of linguistics. New York: Oxford University Press.
Dyfyniad Arddull ChicagoWilliam Bright; editor-in-chief. International Encyclopedia of Linguistics. New York: Oxford University Press, 1992.
Dyfyniad MLAWilliam Bright; editor-in-chief. International Encyclopedia of Linguistics. New York: Oxford University Press, 1992.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.